Australian Open

Switzerland's Roger Federer celebrates after beating France's Jo-Wilfried Tsonga during their men's singles match on day ten of the Australian Open tennis tournament in Melbourne on January 23, 2013.

Switzerland's Roger Federer celebrates after beating France's Jo-Wilfried Tsonga during their men's singles match on day ten of the Australian Open tennis tournament in Melbourne on January 23, 2013. (MANAN VATSYAYANA, AFPGetty Images)

Switzerland's Roger Federer celebrates after beating France's Jo-Wilfried Tsonga during their men's singles match on day ten of the Australian Open tennis tournament in Melbourne on January 23, 2013.